In recent years and accelerated by the economic and financial crisis, complex global issues have moved to the forefront of policy making. These grand challenges require policy makers to address a variety of interrelated issues, which are built upon yet uncoordinated and dispersed bodies of knowledge. Due to the social dynamics of innovation, new socio-technical subsystems are emerging, however ...

Organic agriculture (OA) includes a comprehensive production management system that is considered as one of the strategies to reduce negative impacts of industrial agriculture in many countries. This research was identifying factors affecting the development of OA in Ardabil province. A descriptive– correlation survey approach was used in this study. Participants were agricultural specialists o...

In a recent paper, I argued against backward in time effects used by several authors to explain delayed choice experiments. gave an explanation showing that there is no physical influence propagating from the present past and modifying state of system at previous measurement. However, though solution straightforward case experiments involving only one particle, it subtler two entangled particle...